S-97715A422 3-56 x 1/2" Brass Button Head Hex-Drive Screws
Brass Button Head Hex-Drive Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance thanks to high-quality brass construction, ideal for harsh industrial environments
- Exceptional thread engagement and vibration resistance with Class 3A fit and UNF fine threading for secure, reliable fastening
- High mechanical strength with 50,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Easy and secure installation using a standard 1/16" hex drive, preventing tool slippage and damage
- Versatile fully threaded design ensures maximum grip and adjustability across the entire 1/2" length
- Low-profile rounded button head provides a finished appearance and reduces snagging risks
- Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use
Professional Applications & Engineering Value
These 3-56 UNF brass rounded head screws are engineered to address critical challenges in precision assembly, such as corrosion in electrical components, marine equipment, and plumbing systems. The fine thread spacing and Class 3A thread fit deliver superior clamping force and vibration resistance, preventing loosening under dynamic loads. Made from durable brass, they offer excellent conductivity and non-magnetic properties, making them ideal for electronics and instrumentation. The hex drive and button head style facilitate easy installation in confined spaces, while the fully threaded design ensures consistent performance across various material thicknesses, providing reliable, long-term fastening solutions.
Specification Summary & Compliance
This product adheres to UNF thread standards with a precise Class 3A thread fit for high accuracy. Manufactured in the inch system, key dimensions include a 1/2" length, 0.188" head diameter, and 1/16" hex drive size. It is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006) standards, ensuring environmental and safety regulations are met for industrial use.
